I need to replace both O2 sensors for upstream bank 1 but not too sure exactly which sensor, please supply picture diagram, thanks
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2003 Jaguar X-Type Question: upstream O2 sensor bank 1 diagram
Answer #1Superbob June 08, 2011, 12:57Master
I have no picture or diagram. The upstream O2 sensors are before the catalytic converters and the downstream sensors are behind them. I believe that the upstream sensors are in the exhaust manifolds. You'll have to look for yourself.
Bank one is the side of the engine that has #1 cylinder, FYI.
If you need more information, here are two online sources for you:
d pictures, here are some resources for you: